【'org.apache.flink.streaming.util.serialization.SimpleStringSchema' is deprecated】 怎么解决这个问题,给我具体样例
时间: 2023-12-06 09:05:17 浏览: 204
Sure! To resolve the issue of 'org.apache.flink.streaming.util.serialization.SimpleStringSchema' being deprecated, you can use the 'org.apache.flink.api.common.serialization.SimpleStringSchema' class instead. Here's an example of how you can modify your code:
```java
import org.apache.flink.api.common.serialization.SimpleStringSchema;
import org.apache.flink.streaming.api.datastream.DataStream;
import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
import org.apache.flink.streaming.connectors.kafka.FlinkKafkaConsumer;
public class KafkaConsumerExample {
public static void main(String[] args) throws Exception {
final StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
// Set up Kafka consumer properties
Properties properties = new Properties();
properties.setProperty("bootstrap.servers", "localhost:9092");
properties.setProperty("group.id", "test-group");
// Create a Kafka consumer with SimpleStringSchema
FlinkKafkaConsumer<String> kafkaConsumer = new FlinkKafkaConsumer<>("topic-name", new SimpleStringSchema(), properties);
// Add the Kafka consumer as a source to the Flink environment
DataStream<String> stream = env.addSource(kafkaConsumer);
// Process the stream or perform any desired operations
// ...
// Execute the Flink job
env.execute("Kafka Consumer Example");
}
}
```
In this example, we have replaced 'org.apache.flink.streaming.util.serialization.SimpleStringSchema' with 'org.apache.flink.api.common.serialization.SimpleStringSchema'. This should resolve the deprecation issue and allow you to use string serialization in Apache Flink.
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